CBS Benzothiazole Sulfenamide Accelerator
CBS (CZ) is N-Cyclohexyl-2-benzothiazole sulfenamide, chemically related to named NOBS in HTS 2934.20.1500 via benzothiazole structure. Provides excellent processing safety for automotive rubber components.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If anti-oxidizing preparations of rubber containing CBS
Rubber antioxidant mixtures containing benzothiazoles classified by function
If classified by carboxamide chemical function
Sulfenamide group could take precedence over heterocyclic ring structure
If with processing aids or dispersion agents
Chemical dispersions for rubber industry exceed pure compound specifications
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Commercial invoice must specify exact chemical name and CAS 95-33-0 to match statistical reporting
• Temperature-controlled shipping documentation prevents degradation claims affecting purity classification
• Avoid generic 'rubber chemical' descriptions that trigger Chapter 38 mixture classification
Related Products under HTS 2934.20.15.00
2-Mercaptobenzothiazole (MBT) Powder
2-Mercaptobenzothiazole is a heterocyclic compound containing a benzothiazole ring system, specifically listed under HTS 2934.20.1500. It is primarily used as an accelerator in rubber vulcanization processes to enhance curing speed and performance.
N-(Oxydiethylene)benzothiazole-2-sulfenamide (NOBS) Crystals
NOBS is a delayed-action sulfenamide accelerator containing the specified benzothiazole ring system, explicitly named in HTS 2934.20.1500. It provides scorch safety and fast curing in rubber compounds, especially for thick sections.
2-Mercaptobenzothiazole Industrial Grade 98%
High-purity industrial grade 2-Mercaptobenzothiazole at 98% minimum assay, qualifying as a chemically defined compound under HTS 2934.20.1500. Used in tire manufacturing and rubber belt production for optimal cross-linking.
MBTS Dibenzothiazole Disulfide
MBTS, derived from 2-Mercaptobenzothiazole, contains two benzothiazole rings linked by disulfide bond, qualifying under HTS 2934.20.1500 provisions. Slow-curing accelerator used in EPDM rubber formulations.
NOBS MBS Rubber Accelerator 95% Powder
MBS (MOR) is 2-(Morpholinothio)benzothiazole, a sulfenamide accelerator analogous to named NOBS under HTS 2934.20.1500. Provides balanced cure rate and scorch resistance for conveyor belts.